Abstract
at of live healthy female Dwarf goat kids were reared at N1AB farm. Blood samplirw, was started at the age of 75 days. Progesterone. Oestradiol. LH and BI-! values were monitored using Radioimmunoassay (RIA) during prepuheral period and oestrous cycle. During prepuberal period, progesterone remained at basal levels of 0.1-0.5 ng.ml. A small rise up to 2 pg/ml was noticed in Oestradiol at the transition from prepuberal to puberal period. Similarly, LH and FSH values were risen up to 2.9 ng/m1 and 2.2 ng/ml respectively. Hormonal levels begin to rise at the age 01'4-5 months (120-160 days). FSH and Oestradiol started to increase followed by the LH peak. A decrease in the LH peak level alter 24 hours followed by FSH and Oestradiol level was noticed. Alter oestrous phase progesterone level started to rise up to 4-9 nglinl during the next 15 days. In the next 5 days these levels started to fall to basal values. On the day of oestrous peak values of Oestradiol. 1,11 and FSH ranged from 10-16 pg/mI. 13-23 and 13-22 ng'ml respectively. The overall pattern of release of all these hormones was found similar in all these four animals. So in this lot. the mean age of puberty was found to be 137±31 days with a mean tAcle length of 20±1.
SHAHNAZ A. KHANUM, REHANA K.AUSAR, MUMTAZ ALI, ABDUL MAJEED CHEEMA, MUJAHID HUSSAIN. (2000.) AGE AT PUBERTY IN FEMALE DWARF GOAT ON THE BASIS OF HORMONES, Punjab University Journal of Zoology, Volume 15, Issue .
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